WMSIC Electronic Components

UMW PESD3V3L1UA

ModelPESD3V3L1UA
PackageSOD-323
BrandUMW
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UMW PESD3V3L1UA
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
PESD3V3L1UA
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.03g
Electronic Component
1
Cj- Capacitor
200pF
Electronic Component
BM0231084834
Voltage
15V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
4V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

PESD3V3L1UA 产品概述

一、产品简介

PESD3V3L1UA 是友台半导体(UMW)推出的一款单向瞬态电压抑制器(ESD保护二极管),封装为 SOD-323,专为对敏感数据信号线进行静电放电(ESD)和浪涌脉冲保护设计。器件符合 IEC 61000-4-2、IEC 61000-4-4 与 IEC 61000-4-5 标准,适用于消费类电子、通信接口和传感器等对低电容要求的应用。

二、主要性能参数

  • 钳位电压(Vclamp):15 V(典型或最大工作时的瞬态钳位)
  • 击穿电压(Vbr):4 V
  • 反向截止电压 Vrwm:3 V(建议工作电压)
  • 峰值脉冲功率 Ppp:300 W @ 8/20 µs
  • 峰值脉冲电流 Ipp:20 A @ 8/20 µs
  • 结电容 Cj:200 pF(典型)
  • 反向电流 Ir:1 µA
  • 极性:单向
  • 类型:ESD 保护器件
  • 封装:SOD-323,表面贴装

三、显著特点

  • 通过主要工业级抗扰标准认证,兼容常见静电和浪涌冲击场景;
  • 300 W 峰值功率和 20 A 峰值电流能力,能抑制较强脉冲能量;
  • 单向结构适合用于对地参考的信号线或电源保护;
  • 200 pF 的结电容在高速信号通道应用时需评估对信号完整性的影响;
  • 小型 SOD-323 封装便于 PCB 密集布局与自动贴装。

四、典型应用场景

  • USB、UART、I2C、SPI 等短距离数据接口保护;
  • 手机、平板、可穿戴设备的外部接口与按键线路;
  • 工业传感器输入端、门禁与通讯模块接口;
  • 任何需在 3 V 左右工作电压下进行瞬态抑制的电子终端。

五、封装与可靠性建议

  • 建议将器件尽量靠近被保护引脚放置,走短且宽的接地回路以降低寄生电感;
  • 对高速差分或敏感模拟通道,需评估 200 pF 电容对带宽和信号质量的影响,必要时考虑更低电容型号或在前端增加阻抗匹配元件;
  • 在高能量浪涌场景中,配合适当的熔断或限流方案提升系统整体可靠性。

六、使用注意事项

  • 本器件为瞬态保护元件,不能作为长期限流或稳压元件使用;
  • 在选择替代型号时,请以 Vrwm、Vbr、Vclamp、Ppp、Cj 和封装为主要匹配指标;
  • 如需在更高工作电压或更低结电容场景使用,请联系供应商确认其它系列或定制方案。

PESD3V3L1UA 在小封装中提供了符合工业标准的 ESD 与浪涌保护能力,适合对成本、体积敏感且工作电压接近 3 V 的多种电子产品。

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